| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device which can flexibly adjust each of doubly resonated resonance frequencies.SOLUTION: The antenna device comprises a substrate body 2, and a ground pattern GND, a first element 3 and a second element 4 which are formed on the surface of the substrate body. The first element has a first extension part E1 which extends in a direction apart from the ground pattern, and a second extension part E2 which extends from a tip of the first extension part along the ground pattern. The second element has a third extension part E3 which is connected to the middle of the first extension part and extends along the second extension part, and a fourth extension part E4 which extends from a tip of the third extension part toward the ground pattern and is connected to the ground pattern. The base end of the first extension part is connected to the ground pattern. |
